Means for producing a testing thread



5 Sheets-Sheet 1 Filed June 12, 195? Zwanian Art Aug. 1, 1939'. P. LITTY 2,167,808

I MEANS FOR PRODUCING A TESTING THREAD Filed June 12, 1937 s Shets-Sheet 2 Aug. 1, 1939. P. LllTTY 7 MEAPiS FOR PRQDUCING' A TESTING TH READ s Sheets-Sheet s Filed June 12, 1937 Patented Aug. 1, 1939 UNITED STATES 2,167,803 MEANS roa PRODUCING a resume 'rnasAn Paul Litty, Leipzig, Germany Application June 12, 1937, Serial No. 147,970

Germany June 13, 1936 9 Claims. (01. 19-98) In order to obtain from any particular raw material a thread which can be tested as'regards its spinning properties and its strength, it has hitherto been the practice to pass a large quantity of the raw fibrous material to be tested through the various machine's required for its manufacfture (carding engine, drawing frame, flier frame) to the .spinning frame in the ordinary way of manufacture. As the normal machine requires a, considerable quantity of raw material to fill it, that is to make it operate uniformly, the method was costly, inconvenient and time wasting, more particularly owing to the circumstance that the particular machine had-to be withdrawn during this period from the ordinary course of manufacture. Moreovera considerable, wastage of raw material resulted.

According to the invention it is possible, with a relatively small quantity of raw material, for

instance 50 grams and less, to obtain in a very short time and without interfering with the course of'inanufacture, an accurate and reliable picture as to the properties of the raw material, which are most important for its future use, more par- 5 ticularly the strength of the thread, and thus from a number of samples of raw materials quickly toselect the most suitable one. presents the further possibility of weighing the waste and using it in judging.

According to the invention this is effected by presenting to a small carding enginethe same small quantity of different fibrous materials, working it up on this machine to a web of certain length, passing the web again through the carding engine and making from it a uniform sliver, drawing this sliver on an adjustable drawing frame while ascertaining the correct cylinder position, and spinning it to a thread, the strength and uniformity of which is tested.

A device for carrying out the method is illustrated by way of example in the accompanying drawings,' partly diagrammatically.

Figure 1 shows the device in side elevation, with some of the parts in section. Figure 2 is a plan view of the device.

Figure 3 is a diagrammatic representation of details in side elevation and partly in section to a smaller scale. y

Figure 3a shows some details in elevation and part, section to a larger scale.

Figure 4 is a view of an intermediate product producedon the lines as shown in Figures 1 to 3.

Figure 5 shows a portion of Figure 3 with one part in another position, to the same scale as Figure 3;

This

. The device for carrying out the method according to the invention consists substantially of a small carding engine A of special construction.

The small carding engine contains a feed conveyer band I, which runs over guide rollers la 5 and I b, a feed trough 2 with a pressure applying roller 3, a licker-in 5, a main cylinder 6, a stripperroller I, a dollar comb 8, a lap cylinder 9 and a weightroller In. These parts correspond 'substantially to the parts of a large carding engine, it with the difference that the dimensions are made so small that even quite small quantities of raw textile materials, such as 50 grams or less, completely coverthese parts.

The following parts differ from those of a nor- 18 surface against the peripheral surface of the main cylinder yielding in an adjustable manner. The distance of the pin points of the individual covers from the pin points of the main-cylinder 25 is preferably greater at the feeding in place of the web, that is at I 4, than at l5 (Figure 3) The cover sector is arranged so as to be easily removed, being preferably hinged at one end about a pivot l6. At the other end it rests on a holder l6a. so Owing to this arrangement the cover sector can, for the purpose of easily cleaning the main cylinder and cover, be removed from the former, compare position |2a in Figure 3. Behind the doifer comb 8 a collecting funnel I1. is arranged so as 35 to be capable of being moved into the path of the web coming from the doifer comb, for instance by means of a bow l8. Figure 3 shows it in the inoperative and Figures 1, 2 and 5 in theoperative position. "Figure 3a shows the resilient and adjustable arrangement of the covers l3 in the cover sector 12, [3a being a spring and I312 an adjusting knob, The drive of the various parts also diflers'from that of a normal carding engine and is arranged 45 entirely to. suit the particular requirements of a small machine for ,testing purposes. From a source of power next to the small carding engine, for instance an electric motor l9, by means of a belt I 9a travelling 'over belt pulleys 20 to 22, the 50 doifer motion, the main cylinder 6 and the lickerin 5 are driven. These belt pulleys are mounted on shafts 24, 23 and 25. From. the shaft 25- 0f the licker-in there is driven by means of worm wheels a shaft 26 for imparting motion to these roller la of the conveyer band and a shaft 21 for imparting motion to the stripper roller 1. A worm wheel 2! which transmits this motion, transmits the drive to a. shaft 20 which-through )worm wheels 3| 3| drives the lap drum].

The roller I is journalled in a weight loaded lever It. 1

Below the various rollers set withpins a slide- 1, like collecting trough 33 with a handle 34 and an arresting device I5 is disposed. This collecting trough is divided up bypartitions 36 and 31 into three compartments 38, 39, 40'. The device according, to the invention operates as follows:

A measured quantity of the raw textile mateband I after the guide rails II have been brought" into an inner position Ila, see Figure 2. The raw material travels in the direction of the arrow D, is

taken off by the doffer comb 8 and is wound on to the lap cylinder 9. On this cylinder is forn'ied a so-called lap ll of acertain thickness, that is to say, in dependence of the periphery of the lap cylinder? After" the small quantity of raw-material therein has been completely worked up, the lap is cut open'along a peripheral line of the lap cylinder as indicated at I! in Figure 3. For this, cutting open a groove 41 is preferably provided in v the lap cylinder 9, see Figure 1. This lap is placed again, as shown in Figure 4, 'On the feed band I, after the guide rails II have been previously brought into an outer position, as during the operation of the carding engine the textile material has spread out. Before the small carding engine is put ir'ioperaition the collecting funnel I1 is placed in position-(Figures l, 2 and 5). By the said, funnel the lap coming from the doifercomb is united and compacted into a sliver or band 44, that is indicated by line 45 (FigureZ) Experience has shown, that a very small constructional form of carding engine of only about 1 metres length, metre breadth and V metre in height is ample for obtaining an accurate pic-. ture as to the particular raw material. What I claim isl. A device for making a testing thread fr om a quite small quantity of fibrous material, for instance 50 gms., for ascertaining the spinning capacity and the properties of the fibrous material as regards strength, comprising a conveyer band,a feed trough, a licker-in, a main cylinder having a diameter less than twenty inches, a cover sector, a stripper roller, a doffer comb, a slotted lap cylinder, a collecting funnel capable of bein order to work up the lap a second time on the same carding engine and to form itinto a'sliver of very great uniformity. r

2x A device for making a testing thread from a ,quite small quantity of fibrous material, for instance 59 gms., for ascertaining the spinning capacity and the properties of the fibrous material as regards strength, comprising in combination a conveyer band, a feed trough, a licker-in; a main cylinder having a diameter -less than twenty inches, a plurality of separate adjustable covers set with disentangling members, a cover sector as the support fonthe separate covers, this cover 10 sector being pivotally connected at one end and releasably supported atthe other end, a stripper "roller, a dofi'er comb, a slotted lap cylinder, a collecting funnel capable of being moved intoand out of the operative position in order to work up I the lap a second time on the same carding engine rial, for instance 50 grams, is laid on the feed worked up on the carding engine, the web is moved into, and out of the operative position in and to form it into a sliver of very great uniformity. I,

3. A device for making a testing thread from a quite small quantity of fibrous material, for instance 50 gms., for ascertaining the spinning 'ca- 5 pacity and properties of the fibrous material as regards strength, comprising in combination a conveyer band,'-a feed trough, a licker-in, a main cylinder having a diameter less than twenty; inches, a plurality of separate adjustable covers. v10

'set with disentangling members, the internal surface of these covers being positioned at the place 1 ,of entry of the fibrous material farther from the Q peripheral surfaceof the said main cylinder than.

at the place where vthe fibrous material leaves, a cover sector as the support for the separate covers, the said cover sector being easily removable, a stripper roller, a doifer comb, a slotted lap cylinder, a collecting funnel capable of being moved into and out of the operative position in go order to-work up the lap a second time on the 7 same carding engine and to form it into a' sliver '1 of very great uniformity.

4. A device for making atesting thread from a quite small quantity of fibrous material, for inas stance 50 gms., for ascertaining the spinning capacity and properties'of the fibrous material as regards strength, comprising in combination a conveyer-band, a feed trough, a licker-in, a main cylinder. having a diameter less than twenty ,inches, a'plurality of separate adjustable covers, set withdisentangling members, the internal surface of these covers being positioned at the place of entry of the fibrous material farther from the peripheral surface of the said main cylinder than at the place where the fibrous material leaves, a cover sector as the support for the separate covers, the said cover sectorbeing pivotally conv nected at one -end and releasably supported at the other .end, a stripper roller, a doffer comb, a 40 ,preferably slotted lap cylinder, a pivotally mounted bow member, extending over the lap cylinder,

a collecting funnel mounted on the said bow member in order to work up the lap a second time on the same carding engine and to form it into a sliver of very gneat uniformity.

,5. A device f r making a testingthread from a quite small quantity of fibrous material, for instance gms., for ascertaining the spinning capacity and properties of the fibrous material 50 as regards strength, comprising in combination a conveyer band, a feed trough, a licker-in, a main'cylinder having a diameter less than twenty inches, a plurality of, separate adjustable covers set with disentangling members, the internal surface of these covers being positioned at the place I of entry of the fibrous material farther from the peripheral surface of the said main cylinder than at the place where the fibrous material, leaves, a

, cover sector adapted to hold the individualcovers 00 instance 50 gms., for ascertaining the spinning capacity and properties of the fibrous,material as regards strength, comprising in combination a conveyer band, a feed trough, a licker-in, a main inches, a plurality 01. separate adjustable covers set with'disentangling members, the internal surface of these covers being positioned at the Place of from the entry "of the fibrous material farther peripheralf-surtace oi the said main cylinder than at the place where the fibrous material leaves, a cover sector as the support for the separate -covers, the said cover sector being piv otally connected atone end and releasably supported at the other end,-a stripper roller, a dofler comb, a slotted lap cylinder, at pivotally mounted bow member extendingover the lap cylinder, a collecting funnel mounted on the said bow mem--- ber in order to work'upthe lap a secohd time on,

the same carding engine and to form it into a sliver ofverysgreat uniformity.

7. -A device for making a testingthread from a quite small quantity of fibrous materiaheomprising in combination a conveyer band, a .feed trough, .a licker-in, a main cylinder having a diameter-less than twenty inches, a piuralityoi separate adjustable covers set with disentangling members, the internal surface of these covers beroller, a dotfer comb, a slotted lap cylinder,

ing positioned at the place 01 entry of the fibrous material farther from the peripheral surface, bl the said main cylinder than at, the place where the fibrousjmateria'i leaves, a cover sector as the support for the separate covers, the said cover sector being pivotaiiy connected at one end an releasably supported at the other'end, a stripper a pivotally mounted bow member extending over the lap cylinder, 9. collecting tunnel mounted on the said how member in order to work up the lap a second time on the samecardlngengine and to form itinto a .sliver of very great uniformity;

I u of very great ,unirormity. A device ifor making a testing thread from a a quite small quantity oi fibrous material, com-- prising in combination a conveyer band. a feed trough. a licker-in, a, main cylinder having a diameter less than twenty inches, a plurality 01 separate adjustable covers set with disentangiing members, a cover sector as'the pport for the a separate covers, said cover sector ng pivotally connected at one end and releasably supported at the other end, a stripper roller, a doiier comb, a slotted lap cylinder, a collectingi'unnel capable of being moved into and out oil an'operatlve poslm tion in order to work up the lap a second time on the same carding engine and to form it into a sliver oi very great uniformity.

9. A device for making a testint thread from a quite small quantity of fibrous material, for in M stance 50 ms, for ascertaining the spinning.

capacity and the properties of the fibrous material as regards strength, cpmprising in combination a conveyer band, a feedtrough, a iicker-in, a main cylinder having la dlameter less than twentyv inches, a plurality of separate adjustable covers setwith disentanglimr members, the internal surface 01' these covers being positioned at the place of entry of the fibrous material iarther from theperipherai surface of the cylinder than at the place where the fibrous materiai'leaves, a cover sector adapted to hold the separate covers ina yielding and'adjustable manner, thesaid cover sector being pivotaily connected at one end and releasably supported at the other end, a stripper roller, a doder ccmb a slotted lap cylinder. a pivotally mounted bow member extending over the lap cylinder, 9. collecting tunnel mounted on the said bow member in order to work up the lapa second time on the same carding engine and to form it into a sliver PAUL 

